a variable in a function definition. Used as a placeholder for values that will be passed through the function: Parameter
the value passed to the parameter: argument
used to return the flow of control to the point where the procedure (also known as a function) was called and to return the value of expression: return
a process and allows a procedure to be used only knowing what it does, not how it does it. Procedural abstraction allows a solution to a large problem to be based on the solution of smaller subproblems. This is accomplished by creating procedures to solve each of the subproblems.
Library: a group of functions (procedures) that may be used in creating new programs
API: Application Program Interface - specifications for how functions in a library behave and can be used
Modularity: the subdivision of a computer program into separate subprograms